Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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  • Jones, R. A.; Breen, A. R.; Fallows, R. A.; Canals, A.; Bisi, M. M.; Lawrence, G. (2007-08)
    Observations suggest that the interplanetary extensions of coronal mass ejections (iCMEs) may be accelerated or decelerated in their passage through the solar wind. Interplanetary scintillation measurements (IPS) can detect ...
  • Breen, Andrew; Jones, R. A.; Fallows, Richard A.; Canals, A. (American Geophysical Union, 2007-08)
    Observations suggest that the interplanetary extensions of coronal mass ejections (iCMEs) may be accelerated or decelerated in their passage through the solar wind. Interplanetary scintillation measurements (IPS) can detect ...
  • Mishuris, Gennady; Movchan, Natasha; Movchan, Alexander; Piccolroaz, Andrea (2012-05-14)
    The interaction of an interfacial crack with small impurities is analysed on the basis of an asymptotic formula derived by the authors. The interaction between the main crack and the defects (e.g. small cracks or inclusions) ...
  • Jones, D. G.; Brieva, A. C.; Jenkins, Tudor; Evans, D. A. (2006-04)
    The internal structure of copper(II)-phthalocyanine (CuPc) thin films grown on SiO2/Si by organic molecular beam deposition has been studied by grazing incidence x-ray reflectometry (GIXR) and atomic force microscopy. The ...
  • Finlayson, Christopher Edward; Haines, Andrew I.; Snoswell, David R. E.; Kontogeorgos, Andreas; Vignolini, Silvia; Baumberg, Jeremy J.; Spahn, Peter; Hellmann, G. Peter (2011)
    We report how the strength of resonant Bragg reflection from polymeric photonic crystals (polymer opals) varies linearly with the refractive-index contrast, Δn, in contrast to the quadratic buildup of Fresnel reflections ...
  • Bronstein, Hugo A.; Finlayson, Christopher Edward; Kirov, Kiril R.; Friend, Richard H.; Williams, Charlotte K. (2008-07-14)
    A series of heteroleptic cyclometalated Ir(III) complexes with the general structure [Ir(piq-X)(2)(acac)] (where piq = 1-phenylisoquinolato, X = bromine, 9,9-dioctyl-2-fluorenyl, poly(9,9-dioctyl-2,7-fluorene), acac = ...
  • Li, Xing; Lu, Q. M.; Li, B. (2007-04-24)
    Two scenarios of possible ion heating due to finite amplitude parallel propagating Alfvén waves in the solar atmosphere are investigated using a one-dimensional test particle approach. (1) A finite amplitude Alfvén wave ...
  • Skinner, Lawrie B.; Barnes, Adrian C.; Salmon, Philip S.; Hennet, Louis; Fischer, Henry E.; Benmore, Chris J.; Kohara, Shinji; Weber, J. K. Richard; Bytchkov, Aleksei; Wilding, Martin C.; Parise, John B.; Farmer, Thomas O.; Pozdnyakova, Irina; Tumber, Sonia K.; Ohara, Koji (2013-01-03)
    The structure of liquid alumina at a temperature similar to 2400 K near its melting point was measured using neutron and high-energy x-ray diffraction by employing containerless aerodynamic-levitation and laser-heating ...
  • Miguel, M. Carmen; Mughal, Adil; Zapperi, Stefano (2011)
    We consider the laminar flow of a vortex crystal in the Corbino disk geometry. Laminar flow can be induced by thermal fluctuations melting the crystal, but also by shear stress after applying a large current at zero ...
  • Cullen, M. J. P.; Douglas, Robert J. (2003-04)
    It is shown how large-amplitude stability results for flows governed by potential-vorticity conservation can be obtained by geometric arguments using rearrangements of functions. The method allows for non-smooth solutions, ...
  • Dorrian, Gareth (Aberystwyth UniversityMathematical and Physical Sciences, 2009)
    This thesis discusses new observations made of large scale solar wind structure during solar minimum conditions. The phenomena of interplanetary radio scintillation (IPS) is exploited and used in conjunction with white ...
  • Bisi, Mario Mark; Breen, Andrew; Fallows, Richard A.; Habbal, Shadia Rifai; Jones, R. A. (2007-06-01)
    We present the results of a comprehensive study of the fast solar wind near solar minimum conditions using interplanetary scintillation (IPS) data taken with the EISCAT system in northern Scandinavia, and a recent extremely ...
  • Jones, D. G.; Vaidyanathan, S.; Jenkins, Tudor; Ellis, J. (2007-07-15)
    Laser desorption/ionization mass spectrometry (LDI-MS) on porous silicon is a promising analytical strategy for the rapid detection of metabolites in biological matrices. We show that both oxidized and unoxidized porous ...
  • Jones, Aled R.; Shaw-West, Rachel N.; Winter, Rudolf; Massiot, Dominique; Florian, Pierre; Wolff, Matthias (2007-01-30)
    The time resolution achievable in in-situ high-temperature nuclear magnetic resonance (NMR) experiments is investigated using laser heating of refractory materials. Three case studies using 27Al in alumina nano-particles, ...
  • Iwaniak, Wojciech; Fritzsche, J.; Zukalova, M.; Winter, Rudolf; Wilkening, Martin; Heitjans, Paul (2009-04)
    Spinel-type structured Li4+xTi5O12 (0 6 x 6 3 ) is actually one of the most promising anode materials for Li ion batteries. In its nanostructured form it is already used in some commercially available Li ion batteries. As ...
  • Winter, Rudolf; Heitjans, Paul (2001)
    The layered fast ion conductor LixTiS2 (x ≈ 2/3) has been prepared in nanocrystalline (n-LixTiS2) and amorphous (a-LixTiS2) forms. Hence, a direct comparison of the lithium diffusion in a homogeneously and a heterogeneously ...
  • Hill, Joe M.; Lloyd, Noel G.; Pearson, Jane M. (2008)
    We present some properties of a differential system that can be used to model intratrophic predation in simple predator-prey models. In particular, for the model we determine the maximum number of limit cycles that can ...
  • Gough, John Edward; Gohm, Rolf; Yanagisawa, Masahiro (2008-12-08)
    The mathematical theory of quantum feedback networks has recently been developed [J. Gough and M. R. James, e-print arXiv:0804.3442v2] for general open quantum dynamical systems interacting with bosonic input fields. In ...
  • Palmer, Alison (Aberystwyth UniversityMathematical and Physical Sciences, 2007)
    The linear stability of the Giesekus and linear Phan-Thien Tanner (PTT) fluid models is investigated for a number of planar Poiseuille flows in single, double and triple layered configurations. The Giesekus and PTT models ...
  • Greaves, George; Hennet, L.; Jenkins, T. E.; Landron, C. (2001)
    The neutron scattering structure factor SN(Q) for a 40 mg drop of molten alumina ( Al2O3) held at 2500 K, using a laser-heated aerodynamic levitation furnace, is measured for the first time. A 1700 atom model of liquid ...

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